Edit: First episode watched. It's a bit of a strange encode, Xvid video with Vorbis audio in a Matroska container. It's also dual audio (I haven't listened to the English dub yet, I'm assuming it's crap), has both SRT and SSA subtitles, and looks pretty good for an Xvid encode of a 1995 TV series. Some of the subtitles seem slightly mistimed (creating brief moments where two lines appear at the same time) and there's some interlacing issues, but nothing fatal. The series is also marginally entertaining, as long as you remember not to take any of it seriously. 
Those kinds of encodes were common for DVD-rips released in 2004-2005, after the introduction of matroska but before h264 became common. The quality of avatar's release doesn't really matter, since the only other complete version is ILA's .ogm release... which isn't allowed on BBT anyway. At least avatar started including secondary subs after ep 13.
As a side comment, the English dub is actually not that bad. I wouldn't call it great by any means, but the writing manages to make some of the dialogue less cheesy and more entertaining. Plus, it's got some awesome accents for the bad guys. The show itself is pure 90s elementary-schoolgirl-targeted cheese, and will feel like a Sailor Moon ripoff to many. But thanks to all the recycled transformation and attack animation, it's easy to watch an episode in 17-19 minutes if you fast-forward.
EDIT: Hmm, the presence of that Wedding Peach DX R2-rip + .srt sub torrent gives me a project idea... I could rip the English audio and the main + secondary subtitles from the R1 DVD and synch/mux them to create a dual-audio, fansub + R1-sub hybrid version. That'd be easier than ripping the whole DVD and creating a new DA encode from scratch. But if someone wants to upload the existing DX files, don't wait for me to do this -- I have no idea how easy or hard it will be to get the English audio to synch up correctly.